Range description ³

This species is found in fourteen states within the United States of America.

Distribution ⁴

Global Range: (20,000-2,500,000 square km (about 8000-1,000,000 square miles)) Northeastern North America: A substantial total known range from northeastern Maine, southwest to Ohio, south to South Carolina (Needham and Westfall 1955). Area approximately 650 x 2,000 kilometers = 1,300,000 square kilometers (approximately 400 x 1,200 miles = 480,000 square miles).

Habitat ⁵

Comments: Lotic. Overall habitat is clear rivers and streams. There appears to be little known regarding habitat and microhabitat requirements of this species but a mature female was taken perched in the short grasses beside the St. George River in Maine in 1997. The river at this point is moderately wide and shallow, with clear water running over a cobble bottom and few macrophytes.

Threats ⁶

Degree of Threat: High - medium

Comments: Current threats appear minor over much of the species' northern range, but habitat threat is probably significant to the south.Potential threats of habitat degradation are the impoundment of running waters by human activities such as poorly drained roads, damming, and also natural activities such as beaver damming (often a transient effect), channelization leading to scour of microhabitats, toxic or organic pollution, introduction of exotic species.

Sources and Credits

1. (c) Paul Bedell, some rights reserved (CC BY-NC-SA), http://www.flickr.com/photos/40563282@N03/7796223992/
2. (c) Paul Bedell, some rights reserved (CC BY-NC-SA), https://www.flickr.com/photos/40563282@N03/14204434353/
3. (c) International Union for Conservation of Nature and Natural Resources, some rights reserved (CC BY-NC-SA), http://eol.org/data_objects/31069620
4. (c) NatureServe, some rights reserved (CC BY-NC), http://eol.org/data_objects/28906172
5. (c) NatureServe, some rights reserved (CC BY-NC), http://eol.org/data_objects/28906178
6. (c) NatureServe, some rights reserved (CC BY-NC), http://eol.org/data_objects/28906170

More Info

• iNat taxon page
• Animal Diversity Web
• Biodiversity Heritage Library
• BOLD Systems BIN search
• CUIC Insect Images
• Global Biodiversity Information Facility (GBIF)

Range Map

(c) Discover Life and original sources, some rights reserved (CC-BY-NC-SA)

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